Journal of Astronautics ›› 2013, Vol. 34 ›› Issue (3): 426-433.doi: 10.3873/j.issn.1000-1328.2013.03.019

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A Robust Underdetermined Mixing Matrix Estimation Algorithm

DONG Tian bao,  YANG Jing shu   

  1. 1.State Key Laboratory of Pulsed Power Laser Technology, Electronic Engineering Institute, Hefei 230037, China;
    2.Key Laboratory of Electronic Restriction, Hefei  230037, China
  • Received:2012-02-08 Revised:2012-09-24 Online:2013-03-15 Published:2013-03-25


In this paper, an improved algorithm is proposed for mixing matrix estimation in underdetermined blind source separation (UBSS). In the algorithm, the single source points in the time frequency (TF) domain are detected first. Then, those single source points which deteriorate the mixing matrix estimation accuracy are removed. Finally, the mixing matrix is estimated by using a clustering method. It is experimentally shown that the proposed algorithm estimates the mixing matrix with high accuracy and robustness compared with existing algorithms.

Key words: Underdetermined blind source separation, Sparse component analysis, Mixing matrix estimation, Robustness 

CLC Number: